Association of Acute and Chronic Hyperglycemia With Acute Ischemic Stroke Outcomes Post-Thrombolysis: Findings From Get With The Guidelines-Stroke.

Abstract

BACKGROUND:

Hyperglycemia has been associated with adverse outcomes in patients with acute ischemic stroke (AIS) and may influence outcomes after tissue plasminogen activator (tPA). We sought to analyze the association of acute and chronic hyperglycemia on clinical outcomes in tPA-treated patients.

METHODS AND RESULTS:

We identified 58 265 AIS patients from 1408 sites who received tPA from 2009 to 2013 in Get With The Guidelines-Stroke. Acute hyperglycemia at admission was defined as a plasma glucose level >140 mg/dL. Chronic hyperglycemia was defined by plasma glycosylated hemoglobin (HbA1c) >6.5%. Post-tPA outcomes were analyzed using logistic regression. Blood glucose >140 mg/dL and HbA1c >6.5 were associated with worse clinical outcomes (symptomatic intracranial hemorrhage [sICH], life-threatening hemorrhage, and in-hospital mortality and length of stay) in diabetic and nondiabetic patients. Among patients with documented history of diabetes, increasing admission glucose up to 200 mg/dL was associated with increased adjusted odds ratio (aOR) of in-hospital mortality (aOR, 1.07) and sICH (aOR, 1.05) per 10 mg/dL increase in blood glucose. Increasing HbA1C to 8% was associated with increased odds of in-hospital mortality (aOR, 1.19) and sICH (aOR, 1.16) per 1% increase in HbA1c. Similar findings were observed in patients without a documented history of diabetes. There was no further increase in poor outcomes above the blood glucose level of 200 mg/dL or HbA1c >8.

CONCLUSION:

Acute and chronic hyperglycemia are both associated with increased mortality and worse clinical outcomes in AIS patients treated with tPA. Controlled trials are needed to determine whether acute correction of hyperglycemia can improve outcomes after thrombolysis.

• Authors: Shihab Masrur, Margueritte Cox, Deepak L Bhatt, Eric E Smith, Gray Ellrodt, Gregg C Fonarow, Lee Schwamm
• Journal: Journal of the American Heart Association (J Am Heart Assoc) Vol. 4 Issue 10 Pg. e002193 (Sep 25 2015) ISSN: 2047-9980 [Electronic] England
• PMID: 26408015 (Publication Type: Journal Article, Multicenter Study, Observational Study, Research Support, Non-U.S. Gov't)
• Copyright: © 2015 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley Blackwell.

Chemical References

• Biomarkers
• Blood Glucose
• Fibrinolytic Agents
• Glycated Hemoglobin A
• hemoglobin A1c protein, human
• Tissue Plasminogen Activator

Topics

• Acute Disease
• Aged
• Aged, 80 and over
• Biomarkers (blood)
• Blood Glucose (metabolism)
• Brain Ischemia (diagnosis, drug therapy, mortality)
• Chi-Square Distribution
• Chronic Disease
• Female
• Fibrinolytic Agents (adverse effects, therapeutic use)
• Glycated Hemoglobin (metabolism)
• Guideline Adherence (standards)
• Hospital Mortality
• Humans
• Hyperglycemia (blood, diagnosis, mortality)
• Length of Stay
• Logistic Models
• Male
• Middle Aged
• Multivariate Analysis
• Odds Ratio
• Practice Guidelines as Topic
• Practice Patterns, Physicians' (standards)
• Registries
• Retrospective Studies
• Risk Factors
• Stroke (diagnosis, drug therapy, mortality)
• Thrombolytic Therapy (adverse effects, mortality, standards)
• Time Factors
• Tissue Plasminogen Activator (adverse effects, therapeutic use)
• Treatment Outcome
• United States